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<div class="title">FreqProxTermsWriter.cs</div> </div>
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<a href="_freq_prox_terms_writer_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/* </span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * this work for additional information regarding copyright ownership.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * (the &quot;License&quot;); you may not use this file except in compliance with</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * the License. You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * limitations under the License.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">using</span> System;</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">using</span> System.Collections.Generic;</div>
<div class="line"><a name="l00020"></a><span class="lineno"><a class="code" href="_freq_prox_terms_writer_8cs.html#ac6445f47719a63eecd9434c88ae8b7df"> 20</a></span>&#160;<span class="keyword">using</span> <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a> = Lucene.Net.Util.UnicodeUtil;</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">namespace </span>Lucene.Net.Index</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;{</div>
<div class="line"><a name="l00024"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer.html"> 24</a></span>&#160; sealed <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer.html">FreqProxTermsWriter</a> : <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_consumer.html">TermsHashConsumer</a></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; {</div>
<div class="line"><a name="l00026"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer.html#a40a837128c2ce24b10f2a16af4727890"> 26</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_consumer_per_thread.html">TermsHashConsumerPerThread</a> AddThread(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_per_thread.html">TermsHashPerThread</a> perThread)</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; {</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_thread.html">FreqProxTermsWriterPerThread</a>(perThread);</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; }</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> CreatePostings(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_raw_posting_list.html" title="This is the base class for an in-memory posting list, keyed by a Token. TermsHash maintains a hash ta...">RawPostingList</a>[] postings, <span class="keywordtype">int</span> start, <span class="keywordtype">int</span> count)</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; <span class="keywordtype">int</span> end = start + count;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = start; i &lt; end; i++)</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; postings[i] = <span class="keyword">new</span> PostingList();</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; }</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">int</span> compareText(<span class="keywordtype">char</span>[] text1, <span class="keywordtype">int</span> pos1, <span class="keywordtype">char</span>[] text2, <span class="keywordtype">int</span> pos2)</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordtype">char</span> c1 = text1[pos1++];</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keywordtype">char</span> c2 = text2[pos2++];</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">if</span> (c1 != c2)</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordflow">if</span> (0xffff == c2)</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (0xffff == c1)</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordflow">return</span> - 1;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keywordflow">return</span> c1 - c2;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; }</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (0xffff == c1)</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; }</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> CloseDocStore(SegmentWriteState state)</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; }</div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer.html#afe039384210ecc136900a3727eedb4fb"> 61</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Abort()</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; }</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="comment">// TODO: would be nice to factor out more of this, eg the</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="comment">// FreqProxFieldMergeState, and code to visit all Fields</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="comment">// under the same FieldInfo together, up into TermsHash*.</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="comment">// Other writers would presumably share alot of this...</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer.html#ac37b797927f708524166228080ca96dc"> 70</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Flush(IDictionary&lt;<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_consumer_per_thread.html">TermsHashConsumerPerThread</a>, ICollection&lt;TermsHashConsumerPerField&gt;&gt; threadsAndFields, <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_write_state.html">SegmentWriteState</a> state)</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; {</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="comment">// Gather all FieldData&#39;s that have postings, across all</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="comment">// ThreadStates</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; var allFields = <span class="keyword">new</span> List&lt;FreqProxTermsWriterPerField&gt;();</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="keywordflow">foreach</span>(var entry <span class="keywordflow">in</span> threadsAndFields)</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; {</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; var fields = entry.Value;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">foreach</span>(var i <span class="keywordflow">in</span> fields)</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_field.html">FreqProxTermsWriterPerField</a> perField = (<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_field.html">FreqProxTermsWriterPerField</a>)i;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">if</span> (perField.termsHashPerField.numPostings &gt; 0)</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; allFields.Add(perField);</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; }</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="comment">// Sort by field name</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; allFields.Sort();</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keywordtype">int</span> numAllFields = allFields.Count;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="comment">// TODO: allow Lucene user to customize this consumer:</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_fields_consumer.html" title="Abstract API that consumes terms, doc, freq, prox and payloads postings. Concrete implementations of ...">FormatPostingsFieldsConsumer</a> consumer = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_fields_writer.html">FormatPostingsFieldsWriter</a>(state, fieldInfos);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="comment"> Current writer chain:</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="comment"> FormatPostingsFieldsConsumer</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="comment"> -&gt; IMPL: FormatPostingsFieldsWriter</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;<span class="comment"> -&gt; FormatPostingsTermsConsumer</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;<span class="comment"> -&gt; IMPL: FormatPostingsTermsWriter</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="comment"> -&gt; FormatPostingsDocConsumer</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="comment"> -&gt; IMPL: FormatPostingsDocWriter</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;<span class="comment"> -&gt; FormatPostingsPositionsConsumer</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;<span class="comment"> -&gt; IMPL: FormatPostingsPositionsWriter</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordtype">int</span> start = 0;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">while</span> (start &lt; numAllFields)</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; {</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_field_info.html">FieldInfo</a> fieldInfo = allFields[start].fieldInfo;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; System.String fieldName = fieldInfo.name;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordtype">int</span> end = start + 1;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">while</span> (end &lt; numAllFields &amp;&amp; allFields[end].fieldInfo.name.Equals(fieldName))</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; end++;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_field.html">FreqProxTermsWriterPerField</a>[] fields = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_field.html">FreqProxTermsWriterPerField</a>[end - start];</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = start; i &lt; end; i++)</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; fields[i - start] = allFields[i];</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="comment">// Aggregate the storePayload as seen by the same</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="comment">// field across multiple threads</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; fieldInfo.storePayloads |= fields[i - start].hasPayloads;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; }</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="comment">// If this field has postings then add them to the</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="comment">// segment</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; AppendPostings(fields, consumer);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; fields.Length; i++)</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; {</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_per_field.html">TermsHashPerField</a> perField = fields[i].termsHashPerField;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordtype">int</span> numPostings = perField.numPostings;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; perField.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_per_field.html#ae19c3241d007b53b84816e3cba228cdb">Reset</a>();</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; perField.ShrinkHash(numPostings);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; fields[i].Reset();</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; }</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; start = end;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; }</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">foreach</span>(var entry <span class="keywordflow">in</span> threadsAndFields)</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_thread.html">FreqProxTermsWriterPerThread</a> perThread = (<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_thread.html">FreqProxTermsWriterPerThread</a>) entry.Key;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; perThread.termsHashPerThread.Reset(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; consumer.Finish();</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; }</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keyword">private</span> byte[] payloadBuffer;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="comment">/* Walk through all unique text tokens (Posting</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;<span class="comment"> * instances) found in this field and serialize them</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;<span class="comment"> * into a single RAM segment. */</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">void</span> AppendPostings(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_terms_writer_per_field.html">FreqProxTermsWriterPerField</a>[] fields, <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_fields_consumer.html" title="Abstract API that consumes terms, doc, freq, prox and payloads postings. Concrete implementations of ...">FormatPostingsFieldsConsumer</a> consumer)</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; {</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordtype">int</span> numFields = fields.Length;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_field_merge_state.html" title="Used by DocumentsWriter to merge the postings from multiple ThreadStates when creating a segment ...">FreqProxFieldMergeState</a>[] mergeStates = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_field_merge_state.html" title="Used by DocumentsWriter to merge the postings from multiple ThreadStates when creating a segment ...">FreqProxFieldMergeState</a>[numFields];</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numFields; i++)</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; {</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_field_merge_state.html" title="Used by DocumentsWriter to merge the postings from multiple ThreadStates when creating a segment ...">FreqProxFieldMergeState</a> fms = mergeStates[i] = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_freq_prox_field_merge_state.html" title="Used by DocumentsWriter to merge the postings from multiple ThreadStates when creating a segment ...">FreqProxFieldMergeState</a>(fields[i]);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; System.Diagnostics.Debug.Assert(fms.field.fieldInfo == fields [0].fieldInfo);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="comment">// Should always be true</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordtype">bool</span> result = fms.NextTerm();</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; System.Diagnostics.Debug.Assert(result);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; }</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; </div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; FormatPostingsTermsConsumer termsConsumer = consumer.AddField(fields[0].fieldInfo);</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; FreqProxFieldMergeState[] termStates = <span class="keyword">new</span> FreqProxFieldMergeState[numFields];</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordtype">bool</span> currentFieldOmitTermFreqAndPositions = fields[0].fieldInfo.omitTermFreqAndPositions;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; </div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">while</span> (numFields &gt; 0)</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; {</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; </div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="comment">// Get the next term to merge</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; termStates[0] = mergeStates[0];</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <span class="keywordtype">int</span> numToMerge = 1;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt; numFields; i++)</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; {</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keywordtype">char</span>[] text = mergeStates[i].text;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordtype">int</span> textOffset = mergeStates[i].textOffset;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <span class="keywordtype">int</span> cmp = compareText(text, textOffset, termStates[0].text, termStates[0].textOffset);</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordflow">if</span> (cmp &lt; 0)</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; {</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; termStates[0] = mergeStates[i];</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; numToMerge = 1;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; }</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (cmp == 0)</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; termStates[numToMerge++] = mergeStates[i];</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; }</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; FormatPostingsDocsConsumer docConsumer = termsConsumer.AddTerm(termStates[0].text, termStates[0].textOffset);</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="comment">// Now termStates has numToMerge FieldMergeStates</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="comment">// which all share the same term. Now we must</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; <span class="comment">// interleave the docID streams.</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="keywordflow">while</span> (numToMerge &gt; 0)</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; {</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; FreqProxFieldMergeState minState = termStates[0];</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt; numToMerge; i++)</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <span class="keywordflow">if</span> (termStates[i].docID &lt; minState.docID)</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; minState = termStates[i];</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; </div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordtype">int</span> termDocFreq = minState.termFreq;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; </div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; FormatPostingsPositionsConsumer posConsumer = docConsumer.AddDoc(minState.docID, termDocFreq);</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; </div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; ByteSliceReader prox = minState.prox;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; <span class="comment">// Carefully copy over the prox + payload info,</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="comment">// changing the format to match Lucene&#39;s segment</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="comment">// format.</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="keywordflow">if</span> (!currentFieldOmitTermFreqAndPositions)</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; {</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <span class="comment">// omitTermFreqAndPositions == false so we do write positions &amp;</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; <span class="comment">// payload </span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keywordtype">int</span> position = 0;</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; termDocFreq; j++)</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; {</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="keywordtype">int</span> code = prox.ReadVInt();</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; position += (code &gt;&gt; 1);</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; </div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keywordtype">int</span> payloadLength;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; <span class="keywordflow">if</span> ((code &amp; 1) != 0)</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; {</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="comment">// This position has a payload</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; payloadLength = prox.ReadVInt();</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; </div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <span class="keywordflow">if</span> (payloadBuffer == null || payloadBuffer.Length &lt; payloadLength)</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; payloadBuffer = <span class="keyword">new</span> byte[payloadLength];</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; </div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; prox.ReadBytes(payloadBuffer, 0, payloadLength);</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; }</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; payloadLength = 0;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; </div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; posConsumer.AddPosition(position, payloadBuffer, 0, payloadLength);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; } <span class="comment">//End for</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; posConsumer.Finish();</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; }</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; </div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; <span class="keywordflow">if</span> (!minState.NextDoc())</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; {</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <span class="comment">// Remove from termStates</span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="keywordtype">int</span> upto = 0;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numToMerge; i++)</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <span class="keywordflow">if</span> (termStates[i] != minState)</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; termStates[upto++] = termStates[i];</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; numToMerge--;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; System.Diagnostics.Debug.Assert(upto == numToMerge);</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; <span class="comment">// Advance this state to the next term</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="keywordflow">if</span> (!minState.NextTerm())</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; {</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <span class="comment">// OK, no more terms, so remove from mergeStates</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="comment">// as well</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; upto = 0;</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numFields; i++)</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="keywordflow">if</span> (mergeStates[i] != minState)</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; mergeStates[upto++] = mergeStates[i];</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; numFields--;</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; System.Diagnostics.Debug.Assert(upto == numFields);</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; }</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; }</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; }</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; docConsumer.Finish();</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; }</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; </div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; termsConsumer.Finish();</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; }</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160;</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="keyword">internal</span> <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF8Result termsUTF8 = <span class="keyword">new</span> <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF8Result();</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; </div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="keyword">internal</span> sealed <span class="keyword">class </span>PostingList:RawPostingList</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; {</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">int</span> docFreq; <span class="comment">// # times this term occurs in the current doc</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">int</span> lastDocID; <span class="comment">// Last docID where this term occurred</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">int</span> lastDocCode; <span class="comment">// Code for prior doc</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">int</span> lastPosition; <span class="comment">// Last position where this term occurred</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; }</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; </div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">int</span> BytesPerPosting()</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; {</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; <span class="keywordflow">return</span> RawPostingList.BYTES_SIZE + 4 * DocumentsWriter.INT_NUM_BYTE;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; }</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; }</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160;}</div>
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